The Sheik is a 1921 American silent romantic drama film produced by Famous Players-Lasky, directed by George Melford, starring Rudolph Valentino and Agnes Ayres, and featuring Adolphe Menjou. It was based on the bestselling romance novel of the same name by Edith Maude Hull and was adapted for the screen by Monte M. Katterjohn. The film was a box-office hit and helped propel Valentino to stardom.

In the sequel The Son of the Sheik, Valentino played both the Sheik and his son, while Ayres reprised her role.

Plot:
In the North African town of Biskra, headstrong Lady Diana Mayo (Agnes Ayres) refuses a marriage proposal because she believes it would be the end of her independence. Against her brother’s wishes, she is planning a month-long trip into the desert, escorted only by natives.

When Diana goes to the local casino, she is informed it has been appropriated for the evening by an important sheik, and that none but Arabs may enter. Annoyed at being told what she cannot do, and her curiosity piqued, Diana borrows an Arab dancer’s costume and sneaks in. Inside, she finds men gambling for new wives. When she is selected to be the next prize, she resists. Sheik Ahmed Ben Hassan (Rudolph Valentino) intervenes, then realizes she is white. Amused, he sends her away. Afterward, Mustapha Ali (Charles Brinley) informs the Sheik she is the woman he has been hired to guide tomorrow. The Sheik hatches a plan. Early the next morning, he sneaks into her room and tampers with the bullets in her revolver as she is sleeping.

As her brother leaves her to her desert excursion, she assures him he will see her in London next month. The Sheik and his men come upon Diana riding alone. She tries to flee while shooting at the Sheik, but he easily captures her. Back at his encampment, he orders her about. She is unused to such treatment, but the Sheik tells her she will learn and demands she dress like a woman (she is wearing pants) for dinner.

Diana tries again to escape, this time into a raging sand storm. The Sheik saves her from certain death, and tells her she will learn to love him. Later, he finds Diana alone in her quarters weeping. The Sheik considers forcing himself upon her, but decides against it and calls for a serving girl, Zilah (Ruth Miller). Zilah offers her a hug. Diana accepts, and pours out her tears in Zilah’s arms.

After a week, the Sheik is delighted by the news that his close friend from his days in Paris, where he was educated, is coming for a visit. Diana is dismayed at the thought of being seen in Arab dress by a Westerner, but the Sheik does not understand her shame. He does, however, return her gowns before his friend comes so she can wear them to dinner. When she is introduced to writer and doctor Raoul St. Hubert (Adolphe Menjou), Diana’s spirit is nearly broken. He befriends her and reprimands the Sheik for his callous treatment of her. The Sheik returns her Western clothing, though he refuses to release her.

When Raoul is called away to tend to an injured man, Diana shows concern that it might be the Sheik. Seeing this from hiding, the Sheik is elated that she may be warming up to him at last. He gives Diana her gun back, telling her he trusts her.

Diana is allowed to go into the desert under the watchful eye of the Sheik’s French valet Gaston (Lucien Littlefield). She escapes. Making her way across the sands, she spots a caravan, unaware that it belongs to the bandit Omair (Walter Long). Fortunately, the Sheik and his men reach her first.

The Sheik reveals to Raoul he is in love with Diana; his friend convinces him to let her go. Meanwhile, Diana is allowed out once more. She playfully writes “I love you Ahmed” in the sand. Then Omair’s band captures her, killing her guards and leaving the wounded Gaston for dead.

When the Sheik goes looking for Diana, he sees her message, then learns from Gaston who has abducted her. He gathers his men to attack Omair’s stronghold. Omair tries to force himself on Diana, but is almost stabbed by one of his women. Then the Sheik and his men sweep in. After a long fight, the Sheik kills Omair, but is himself gravely injured.

Raoul tends to him and tells Diana he has a chance. She sits and holds the Sheik’s hand. When she remarks that his hand is big for an Arab, Raoul reveals that the Sheik is not one. His father was British and his mother Spanish. They died in the desert, and their child was rescued and raised by the old Sheik; when the old man died, Ahmed returned to rule the tribe. When Ahmed wakes up, Diana confesses her love.